Fuzzy Farrant was a policeman in Los Angeles, and one of several other policemen who not only were renowned revolver shooters but also grip makers on the side. They were quite popular years ago, and generally speaking, are desirable now to collectors and shooters who enjoy classic grips. I can't speak to specific value--it seems it can vary widely depending on the individual grips, and who wants a pair at a particular time. In any event, you have a pair of very nice grips.
If I can be so forward, if you decide at any time to sell them, I'd like to have a chance.